Runco VIDEO XTREME VX-22I Installation & Operation Manual page 56

Adjusting the Yaw: Loosen the Yaw/X-Adjustment Levers to allow the lens to pivot freely
from side to side. Then, angle the lens to even out any left-right pincushion distortion:
Anamorphic Lens (Top View)
Correct Position
Wrong Position
Once the proper lens angle has been set, firmly tighten the Yaw/X-Adjustment Levers to
secure the lens in place.
42 Runco VX-22i Installation/Operation Manual